D. In-Car Entertainment System

E. Sniff Out Control Area Network Codes

Materials: Raspberry Pi + PiCAN board + OBD-II shell and pinsCost: $100
Beyond your car’s basic diagnostic data is a CAN system that controls everything from the buttons on your steering wheel, to your windshield wipers. Curious minds can use a Raspberry Pi to glimpse the code that connects all the elements of their vehicle’s electrical systems.

F. Create a Custom OBD-II App Interface

Materials: Smartphone or tablet + OBD-II Bluetooth adapter + appCost: $30 (excluding smartphone)OBD-II compatible apps for smartphones and tablets not only offer a convenient way to tap into your car’s data, they’re also highly customizable and can take advantage of mobile hardware features such as GPS for speed mapping.